look up any word, like donkey punch:
 
1.
The partner of a homosexual. Usually used to describe the sexual partner of an adolescent homosexual.
Dan sure hangs around Dave's house a lot. I suspect Dave is his boner buddy.
by Wordmaster B January 01, 2005
 
2.
The term for the occasion when two or more males engage in the act of schnooking or masturbating in the same room
Jack: Dude, I think Aaron and Mike are in the movie theater schnooking together like Timmy the Toothache. They are even using the same tissues...

Rob: Yeah, they are definitely boner buddies...those fuckin homos
by Ass Raper June 13, 2007